公开(公告)号：US12200049B2

公开(公告)日：2025-01-14

申请号：US18199387

申请日：2023-05-19

Applicant: MegaChips Corporation

Inventor： Kengo Tamukai

IPC: H04L67/104

Abstract: A communication terminal device has circuitry configured to: judge, based on received information, whether or not source of the received information is intra-group communication destination; monitor whether or not the intra-group communication destination is the master unit based on the judgement; acquire the judging criterion information of the intra-group communication destination detected as the master unit; and switch, while the self device is operating by a master unit operation mode and when the other master unit is detected by monitoring, a master unit operation mode of the self device to a slave unit operation mode based on the judging criterion information of the self device and the judging criterion information of the other master unit.

公开(公告)号：US12160099B2

公开(公告)日：2024-12-03

申请号：US17929537

申请日：2022-09-02

Applicant: MegaChips Corporation

Inventor： Yuta Yamada ,  Takashi Ikeda

IPC: H02H3/20 ,  H02H1/00

Abstract: There is provided a to-be-protection circuit that is high in operation accuracy and that prevents overvoltage on a protected circuit. A protection circuit is configured to protect a to-be-protected circuit from overvoltage. The to-be-protected circuit is connected to an external output terminal. The protection circuit includes: a current path unit connected to the external output terminal and including at least one first element; a reference voltage generation unit which generates and outputs a reference voltage; and an amplifier circuit outputs a target voltage based on a difference between a first input voltage and a second input voltage. The amplifier circuit operates using the reference voltage as the first input voltage and using a feedback voltage based on the target voltage as the second input voltage, and outputs the target voltage to the current path unit. The reference voltage generation unit includes at least one second element having an operating characteristic corresponding to an operating characteristic of the at least one first element of the current path unit, and generates the reference voltage based on a voltage drop caused by the at least one second element.

公开(公告)号：US20240134928A1

公开(公告)日：2024-04-25

申请号：US18377437

申请日：2023-10-06

Applicant: MegaChips Corporation

Inventor： Mahito MATSUMOTO

IPC: G06F17/15 ,  G06F17/16

CPC classification number: G06F17/153 ,  G06F17/16

Abstract: Provide is data processing apparatus that performs highly accurate data processing accompanying vector decomposition processing, quantization processing, convolution processing and the like for any distribution of data. The data processing apparatus obtains a plurality of local solutions in the vector decomposition processing, selects a plurality of data adjustment processes performed before the quantization processing for each of the obtained local solutions of the vector decomposition processing, obtains the accuracy of the convolution processing, and then determines a local solution of the vector decomposition processing with highest accuracy and the data adjustment processing, with highest accuracy, performed before the quantization.

公开(公告)号：US11776652B2

公开(公告)日：2023-10-03

申请号：US17507803

申请日：2021-10-22

Applicant: MegaChips Corporation

Inventor： Kantatsu Chin ,  Atsufumi Kawamura

IPC: G11C29/42 ,  G11C29/12 ,  G11C29/18

CPC classification number: G11C29/42 ,  G11C29/1201 ,  G11C29/12005 ,  G11C29/18 ,  G11C2029/1802

Abstract: Provided is a non-volatile storage system that performs error correction processing at high speed while ensuring error correction capability. When error correction decoding processing using data read first with hard-decision decoding processing has failed, a non-volatile storage device 2 reads data on the same page again, performs diversity synthesis processing on the readout data for the first time and the readout data for the second time on the same page as one for the first time, and then performs error correction processing using data after diversity synthesis processing.

公开(公告)号：US20220207903A1

公开(公告)日：2022-06-30

申请号：US17690015

申请日：2022-03-09

Applicant: MegaChips Corporation

Inventor： Mahito MATSUMOTO

IPC: G06V40/10 ,  G06T7/70 ,  G06T17/00

Abstract: Provided is a system that estimates pose data of a person with high accuracy at low cost. At a time step at which image data is to be captured and obtained, a pose data generation system obtains pose data based on the image data. At a time step at which image data is not to be obtained, the pose data generation system predicts pose data at a current time step from a previous time step using IMU data and performs interpolation processing to obtain pose data. Thus, even when a rate of obtaining the image data is low, the pose data generation system performs the above interpolation processing using IMU data to obtain pose data with a high frame rate.

公开(公告)号：US11073542B2

公开(公告)日：2021-07-27

申请号：US16219975

申请日：2018-12-14

Applicant: MegaChips Corporation

Inventor： Takahiko Sugahara

IPC: G01R21/133 ,  G01R21/06 ,  G06F1/26 ,  G06F11/28 ,  G01R19/165 ,  G06F11/30 ,  G06F21/00 ,  G06F1/28

Abstract: Circuitry is configured to cause a memory device to perform a predetermined power consumption operation for authentication of the memory device in addition to a normal operation, and determine whether the memory device is an authorized or an unauthorized product, based on a measured current value measured in a period when the memory device performs the power consumption operation and a reference current value that is a current value in the power consumption operation by an authorized product.

公开(公告)号：US20210013993A1

公开(公告)日：2021-01-14

申请号：US16979978

申请日：2019-03-12

Applicant: MegaChips Corporation

Inventor： Taiji KONDO

IPC: H04L1/00 ,  H04L27/26 ,  H04B17/336 ,  H04W52/24

Abstract: A communication system that uses a wired transmission line and multi-carrier modulation includes a transmitting device and a receiving device that are connected through the wired transmission line, wherein the receiving device includes an estimator configured to estimate a first SINR (Signal-to-Interference-Plus-Noise Ratio) of a first sub-carrier and a second SINR of a second sub-carrier, the transmitting device includes a power adjustor configured to boost a transmission power for the first sub-carrier such that an SINR of the first sub-carrier reaches a first SINR threshold corresponding to a first MCS (Modulation and Coding Scheme) that is larger than the first SINR, and back off a transmission power for the second sub-carrier such that an SINR of the second sub-carrier is lowered to a second SINR threshold corresponding to a second MCS that is smaller than the second SINR, and the transmitting device allocates the first MCS to the first sub-carrier.

公开(公告)号：US10854151B2

公开(公告)日：2020-12-01

申请号：US16270340

申请日：2019-02-07

Applicant: MegaChips Corporation

Inventor： Rui Fukuchi

IPC: G09G3/36

Abstract: In the image processing device, to display, by the panel self-refresh, a still image corresponding to the image data having undergone the image processing, the switch signal generating circuit generates the switch signal controlling switching of the image data selected by the first to fourth switch circuits such that the input image data is subjected to the image processing by the first image processing circuit, that the image data having undergone the image processing is written in the frame buffer through control by the panel self-refresh control circuit, and that the image data having undergone the image processing as read out from the frame buffer is output from the fourth switch circuit or the image data having undergone the image processing is output from the fourth switch circuit via the third switch circuit.

公开(公告)号：US20200311301A1

公开(公告)日：2020-10-01

申请号：US16831839

申请日：2020-03-27

Applicant: MegaChips Corporation

Inventor： Toshio KATSURA ,  Masahiro SHINDO ,  Injie NAKAO ,  Motoaki YASUI ,  Masashi KURAMOTO

IPC: G06F21/62 ,  G06F21/78 ,  G06F16/14 ,  G06F16/16

Abstract: A memory system connected to a host computer generating input information, includes a storage configured to store application program executed by the host computer, a contents database relating various contents candidate information used by the host computer with either of plural adjustment candidate identification information, and input information inputted from the host computer, circuitry configured to infer, by executing inference by an artificial intelligence algorithm, specific adjustment candidate identification information as adjustment identification information from the plurality of adjustment candidate identification information according to the input information and select specific contents candidate information as adjustment contents information from the contents database using the adjustment identification information and an interface configured to output the adjustment contents information to the host computer.

公开(公告)号：US10545031B2

公开(公告)日：2020-01-28

申请号：US14864166

申请日：2015-09-24

Applicant: MegaChips Corporation

Inventor： Mahito Matsumoto

IPC: G01C25/00 ,  G01C22/00

Abstract: A portable terminal device provided with: a gyro sensor measuring an angular velocity to acquire angular velocity information; an acceleration sensor measuring an acceleration to acquire acceleration information; a camera capturing an image of a subject in surroundings to acquire image information; a vector calculation unit calculating a motion vector of the subject based on the image information; a correlation decision unit deciding a relative relation between a traveling direction by a walking motion of the user and an image-capturing direction of the camera in accordance with the angular velocity information and the acceleration information; a rectilinear walking decision unit deciding whether the user is in a rectilinear state in accordance with the calculated motion vector of the subject and correlation decision information; and a correction unit correcting the angular velocity information acquired by the gyro sensor in response to decision that the user is in the rectilinear state.